What is the area of this region of Central Europe located mostly in Poland, in which Złotniki Lubańskie was formerly part of the historic Upper Lusatia region at its border?
40,000 km2
-1
Section::::Abstract.
Złotniki Lubańskie
14273779
-1
Section::::Abstract.
Złotniki Lubańskie
14273779
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Section::::Etymology.

Silesia
28399
-1
Section::::Abstract.
Silesia
28399